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The design secret of Kyokusui-no-En’s meandering channel

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Abstract

The purpose of this study is to investigate the characteristics of the flow through the Jonangu channel which is used for ceremonial game called as ‘Kyokusui-no-En’ in Japanese. The geometry of the channel is measured, a visualization technique is used to measure the actual flow characteristics, and then a numerical flow model is used to represent the flow including unsteady flow characteristics. Numerical model of drifting cup is introduced to investigate an interaction between flow and motion of the cup. Finally, the intention of the channel design is interpreted from the viewpoint of fluid mechanics using observed and calculated results.

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Authors and Affiliations

  1. Department of Civil Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Japan

    Tsubaki R.

  2. Future Technology Research Institute/ Tokai University, 3-56-2 Higashiohizumi, Nerima-ku, 178-0063, Tokyo, Japan

    Nakayama Y.

  3. Department of Civil Engineering, Kobe University, Rokkodai-cho, Nada-ku, 657-8501, Kobe, Japan

    Fujita I.

Authors
  1. Tsubaki R.
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  2. Nakayama Y.
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  3. Fujita I.
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Additional information

Ryota Tsubaki: He received his Dr.(Eng.) in Civil Engineering from Kobe University, Japan in 2006. He is now working as a post doctoral researcher in Nagoya University, Japan. His current research interests are in the areas of environmental fluid flows, numerical simulation of the open-channel flow and inundation flow, and visualization measurement of the motion.

Yasuki Nakayama: He received his Ph.D. in Mechanical Engineering from Waseda University in 1963. He joined National Railway Technical Research Institute and conducted many research projects. After leaving NRRI, he has been a Professor of Tokai University, Japan, responsible for education and research on fluid mechanics. At present, he is serving concurrently as President of Future Technology Research Institute, Japan. His research interest is visualization. He has received a Medal with Purple Ribbon from the Emperor of Japan, and many distinctions and awards for his outstanding research. He has been a Visiting Professor of Southampton University, UK, President of the Visualization Society of Japan, and Director of the Japan Society of Mechanical Engineering. He is now Editor-in-Chief of Journal of Visualization.

Ichiro Fujita: He received his M.. Sc.(Eng.) degree in Civil Engineering in 1979 and Ph.D. degree in 1990 from Kobe University. He worked at Gifu University from 1982 to 1999. He was a visiting associate professor at the Iowa Institute of Hydraulic Research, the University of Iowa from 1995 to 1996. After working at the Research Center for Urban Safety and Security, Kobe University from 1999 to 2003, he has been working at the Department of Civil Engineering, Graduate School of Engineering, Kobe University as a professor. His research interests are image analysis of river flow and open-channel turbulence.

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Tsubaki, R., Nakayama, Y. & Fujita, I. The design secret of Kyokusui-no-En’s meandering channel. J Vis 11, 265–272 (2008). https://doi.org/10.1007/BF03181715

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  • DOI: https://doi.org/10.1007/BF03181715

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